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Peter Strassner


St. Louis
314 552 6109 direct

Peter has over 25 years of experience in environmental law and handles a wide range of environmental matters, including CERCLA cost recovery litigation, insurance coverage litigation, and civil and criminal defense work, as well as transactional, dispute resolution and regulatory/compliance matters. He is the Co-Chair of Thompson Coburn's environmental group.

Peter counsels some of the country's leading companies in environmental matters, and has represented and litigated successfully on behalf of transportation concerns, mining companies, agribusinesses, chemical manufactures, developers, banks and petroleum companies.

Peter is a former chairman of the Environmental and Conservation Law Committee of the Bar Association of Metropolitan St. Louis. He is recognized for environmental law and/or environmental litigation in Best Lawyers in America®, Missouri & Kansas Super Lawyers, Super Lawyers Corporate Counsel and Chambers USA. Chambers USA gives Mr. Strassner "Top tier" ranking. Super Lawyers has listed him numerous times as one of the top 50 attorneys in St. Louis and/or as one of the top 100 lawyers in Missouri and Kansas. In 2010, he was inducted into the American College of Environmental Lawyers as a fellow. Peter was named the Environmental Law Lawyer of the Year, St. Louis, by Best Lawyers in America® in 2012 and 2015. The same publication also named Peter the 2013 St. Louis Lawyer of the Year for Environmental Litigation.

Thompson Coburn Publications

Do you need a Section 404 permit for your real estate development?

Chemical Safety Board investigator outlines discoveries from West Fertilizer, Charleston water incidents

Top Region 7 attorney details EPA’s biggest enforcement, compliance priorities


"Cleaning the Carter Carburetor site to transform a neighborhood";
St. Louis Business Journal, August 2014

"Chemical Safety Board investigator outlines discoveries from West Fertilizer, Charleston water incidents";
July 2014

"Top Region 7 attorney details EPA’s biggest enforcement, compliance priorities";
June 2014

Co-Author, "Supreme Court Severely Limits Cost Recovery Options for Environmental Cleanups";
Midwest In-House, January 2005


Guest Lecturer, "Impact of U.S. Environmental Laws on Business";
University of Missouri, St. Louis, 2005, 2007

Co-Author, "Supreme Court Severely Limits Cost Recovery Options for Environmental Cleanups";
Midwest In-House, January 2005

Moderator, "Brownfield’s Panel";
"Missouri Environmental Conference at the Lake", Osage Beach, Missouri, July 2001

Speaker, "Environmental Insurance and Development Incentives";
American Railway Development Association, San Diego, California, May 2001

Speaker, "Environmental Data Resources, Inc.’s Spring 2000 Due Diligence at Dawn Seminar";
St. Louis, Missouri, April 2000

Speaker, "1999 Railroad Environmental Conference";
sponsored by the Association of American Railroads and the University of Illinois, Urbana-Champaign, Illinois, September 29, 1999

Speaker, "RCRA Update/Alternative Cleanup Standards";
Associated Industries of Missouri, 1997

Speaker, "Recent Developments in Environmental Law";
Bankers’ Environmental Round Table, 1996

Lecturer, "Recent Developments in Environmental Law Impacting Lenders";
Second Annual Bank Counsel Conference, 1995

Lecturer, "The Impact of Environmental Law on Lenders";
video presentation, for Mercantile Bancorporation Inc., 1995

Speaker, "The Impact of Environmental Laws on Business";
for Rubin, Brown and Gornstein, 1995

Speaker, "Trends in Environmental Enforcement";
Missouri Mining Industry Council, 1993

Speaker, "Environmental Law Section";

Organizer & Moderator, "Annual Environmental Law Update Seminar";
Bar Association of Metropolitan St. Louis, 1992

Organizer & Speaker, "Program on Stormwater Regulation";
Associated Industries of Missouri, 1992

Speaker, "Program on Environmental Liability in Agricultural Transactions";
American Agricultural Law Association Educational Conference, Atlanta, Georgia, 1991

Panelist, "Program on Environmental Issues";
Missouri Industrial Development Council Conference, 1991

Chair & Speaker, "Environmental Risk Management Panel";
the Missouri Waste Coalition Conference, 1990

Speaker, "Program on Impact of Environmental Issues on Real Estate Transactions in Missouri";
National Business Institute, 1993

Moderator, "Program on Underground Storage Tank Liability";
for the Environmental Law Committee of the St. Louis Metropolitan Bar Association

Speaker, "Environmental Issues in the 1990's";
National Rural Economic Developers Association Conference, 1991

Organizer & Lecturer, "Seminar on Environmental Liability in Property Acquisition/Ownership";
for the Home Builder's Association of Greater St. Louis, in cooperation with St. Louis Community College Center for Business, Industry and Labor

Panelist, "Illinois Responsible Property Transfer Act";
The St. Clair County, Illinois Realtors Association Program


25 Thompson Coburn attorneys recognized in 2016 Chambers USA

Cleaning up a toxic site for the Boys & Girls Club

27 Thompson Coburn attorneys recognized in 2015 Chambers USA

Congratulations to our 15 St. Louis ‘Lawyers of the Year’

St. Louis Business Journal covers Thompson Coburn’s work on unique Superfund settlement

Chemical Safety Board investigator shares insights from two high-profile environmental incidents

29 Thompson Coburn attorneys recognized in 2014 Chambers USA

EPA, Boys & Girls Club announce $30 million cleanup of Superfund site

More than 50 attorneys named to 2012 Missouri Bar Pro Bono Hall of Fame

Boys & Girls Clubs of Greater St. Louis honors Thompson Coburn for pro bono work on Superfund cleanup site

19 Thompson Coburn partners named 2013 St. Louis Lawyers of the Year

Thompson Coburn wins Illinois Supreme Court victory for ExxonMobil Coal

Peter Strassner named St. Louis Environmental Lawyer of the Year